My new sights don't hit POA.

Discussion in 'Handguns: Autoloaders' started by Orion8472, Sep 27, 2022.

  1. Orion8472

    Orion8472 Member

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    I got these sights on my P-09. I took it out to the range over the weekend. At 7 yards, it shot about an inch and a half high. Rear sight was all the way down. What now?
    20220823_160121.jpg
     
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  2. joneb

    joneb Member

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    Taller front sight should work, unless I'm thinking of this back asswards.
     
  3. 9mmepiphany

    9mmepiphany Moderator Staff Member

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    The obvious answer would be a taller front sight.

    Which bullets are you shooting, at what velocity?
     
  4. Pivot Dr

    Pivot Dr Member

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    1-1/2” high at 7 yd? Perfect! Where’s it at at 25 yd?
    Spot on to 1-1/2” low would be perfect too.
     
  5. lysanderxiii

    lysanderxiii Member

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    Shoot at a longer range.
     
  6. halfmoonclip

    halfmoonclip Member

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    Uhh, hold at 6 o'clock?
    Ditto on previous questions about bullet weight and velocity.
    For the OP, how tight is your group? Has anyone else tried your gun?
    I think PPs have the right idea of trying it at greater distances.
    Moon
     
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  7. 9mmepiphany

    9mmepiphany Moderator Staff Member

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    I initially read the OP too quickly and completely missed that he was only shooting at 21'.

    I highly doubt any factory sights are set for that short a range
     
  8. Riomouse911

    Riomouse911 Member

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    Yup!

    Try it at 25 yds., it is probably factory regulated for that distance.

    Stay safe.
     
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  9. Orion8472

    Orion8472 Member

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    The bullets used were 147gr Federal fmj. Box states fps as 1000. I have no idea what barrel length was used to get that number.

    I can usually get about a quarter size group at 7 yards. It's what I normally shoot at.
     
  10. 9mmepiphany

    9mmepiphany Moderator Staff Member

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    Both 115gr and 124gr bullets will strike lower. It is highly likely that the sights were factory regulated for one of those bullet weights

    What you normally shoot at has little to do with how factory sights are regulated...or even after-market sights. We old-timers are used to sights set up for 25 yards...S&W M-10s were set up for this distance shooting 158gr bullets. I have heard that some guns are now coming out of the factory set up for 15 yards.

    A quarter is almost an inch in diameter. Try shooting off a bench/rest to get a feel for how far off the sights really are...being sure that you are aligning the tops of the sight blades and not aiming with the dots (they can open up your group quite a bit). There isn't much reason your gun shouldn't be able to put shots on top of each other at 7 yards...then measure how much higher they are hitting than your POA.

    You might want to try some lighter bullets, to see where they are shooting.
     
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  11. joneb

    joneb Member

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    I bought a Sig 938 Legion that shot 6" high at 15 yrds with 124 gr bullets and 4" high with 115 gr bullets. I loaded some 100 gr RNFP and was able to get POA that = POI This was not acceptable so the LGS Sig dealer gave me a taller rear sight witch fixed the problem.
     
  12. 9mmepiphany

    9mmepiphany Moderator Staff Member

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    A taller rear sight will raise the POI

    The POI moves with the rear sight and inversely with the front sight
     
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  13. joneb

    joneb Member

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    Yep my bad, I screw that up everyday and twice on Sunday. The LGS gave me a shorter rear sight to lower the POI. Thanks for the correction.
     
  14. Archie

    Archie Member

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    All my handguns are defensive arms (except for a couple of .22s). So an inch and a half high is just fine with me. For a target shooter, it might print in the nine ring. One and a half inches will hit a six inch gong all day provided one uses a center hold and gets a clean shot.

    Don't change anything and try it at 25 yards. Then 50 yards. If it still hits a bit high, 'accuracy' does not matter. If the shots go high enough to miss, there's a problem.
    Yes. A higher sight will lower the point of impact. From the looks of that pistol, sights should be available from the manufacturer or possibly Brownells.
     
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  15. Orion8472

    Orion8472 Member

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    9mmepiphany, for the test of the new sights, I was using a bag to rest the pistol on.

    But I can try out some lighter grain bullets.

    I do have one more option....slightly shaving off the length of the screw. That will bring the rear sight down just a tad more. And it might make it enough difference that it would work for me.

    Thanks for the replies!
     
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  16. J-Bar

    J-Bar Member

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    What is the gun’s intended use? Self- defense? Competition? Both?
     
  17. Orion8472

    Orion8472 Member

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    Mostly just shooting at 7-10 yards. Just for my own enjoyment.
     
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  18. J-Bar

    J-Bar Member

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    I understand the frustration of POI not being where I want it, at whatever distance I choose to shoot. I understand not wanting to change ammo that functions well. I have sold guns that I couldn’t adjust because the POI upset my obsessive-compulsive disorder!

    Hopefully adjusting the sight screw will work.

    Even though we are probably both crazy, I wanted you to know that you’re not the only one!
     
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  19. Jim Watson

    Jim Watson Member

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  20. doubleh

    doubleh Member

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    I will add my advise to the other "shoot it at a longer distance" ones. When shooting at closer distances follow John Wayne's advise he gave in the movie "Undefeated". Windage and ELEVATION. I have a few that can't be adjusted for the distance I prefer to shoot them and have figuered out how much front sight to see in the rear at that distance. The trick for me now is remembering which gun does what and it become harder with every year. I seem to have a creeping case of CRS..
     
  21. jak67429

    jak67429 Member

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    How are you holding on the target? I see lots of people shoot the fiber optic sights like the dot created by the fiber insert should be center hold, when they are usually set to top of front sight blade for either center or 6oclock hold.
     
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  22. Orion8472

    Orion8472 Member

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    I usually hold right on the target with those types of sights. I can do a 6oclock hold, but tend to be more accurate when I'm holding right on where I want the bullet to hit.

    I did get the screw ground down a bit to where I got the rear sight as low as it will go. I'll try that out. If that doesn't do the trick,...I guess I'll have to resort to a bit taller front sight. I think the .330" should be enough I'd think. Not sure how they stay on the slide, though, without the set screw.
     
    Last edited: Oct 5, 2022
  23. halfmoonclip

    halfmoonclip Member

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    For the OP, are you really that wed to the heavier 9 mm bullets? Lighter ones will hit lower.
    Moon
     
  24. 9mmepiphany

    9mmepiphany Moderator Staff Member

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    You can take the guesswork out by using the Front Sight Calculator on the Dawson site. The front sight is a press fit. If you need to fit it, be sure to remove material from the bottom of the sight
     
  25. Orion8472

    Orion8472 Member

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    halfmoonclip, I actually have more 147gr than 115gr. But do have a couple hundred rounds of it. And about the same of 124gr.

    9mmepiphany, thanks for the heads up.
     
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